文中推导了圆柱壳塑性动力扭转屈曲线性方程，获得了临界冲击速度。
The linear dynamic torsional buckling equations for the rigid plastic shell is drived, and the critical impact velocity is given.
通过数值计算和分析，给出了临界速度与冲击质量、线性强化模量及临界时间间的关系。
By numerical computation and analysis the relationship among critical velocity and impact mass, hardening modulus, buckling time was given.
分析了初始挠度、冲击速度、耦合刚度等因素对临界轴向缩短量的影响。
The present attention is mainly focused on the effect of initial deflection, impact velocity and coupled stiffness.
通过理论分析和数值计算，得到了临界速度与冲击质量、临界长度及线性强化模量间的关系。
The relationship among critical velocity and impact mass, critical buckling length, hardening modulus is given by using theoretical analysis and numerical computation.
通过理论分析和数值计算，得到了临界速度与冲击质量、临界长度及线性强化模量间的关系。
The relationship among critical velocity and impact mass, critical buckling length, hardening modulus is given by using theoretical analysis and numerical computation.
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